GB/T 26551-2011 Livestock machinery—Fodder chopping

GB/T 699-1999 Quality carbon structural steels GB/T 699-2015 Quality carbon structure steels GB/T 1348-1988 Spheroidal graphite iron castings GB/T 1348-2009 Spheroidal graphite iron castings GB/T 1348-2019 Spheroidal graphite iron castings GB/T 2828.1-2003 Sampling procedures for inspection by attributes—Part 1:Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection GB/T 2828.1-2012 Sampling procedures for inspection by attributes—Part 1:Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection GB/T 3098.1-2000 Mechanical properties of fasteners—Bolts, screws and studs GB/T 3098.1-2010 Mechanical properties of fasteners—Bolts,screws and studs GB/T 3098.2-2000 Mechanical properties of fasteners—Nuts—Coarse thread GB/T 3098.2-2015 Mechanical properties of fasteners—Nuts GB/T 5667-1985 Productive testing methods for agricultural machinery GB/T 5667-2008 Productive testing methods for agricultural machinery GB 7681-1997 Safety technical requirements for choppers GB 7681-2008 Safety technical requirements for choppers GB/T 9239.1-2006 Mechanical vibration—Balance quality requirements for rotors in a constant(rigid)state—Part 1:Specification and verification of balance tolerances GB/T 9439-1988 Grey iron castings GB/T 9439-2010 Grey iron castings GB/T 9439-2023 Grey iron castings JB/T 7288-2006 Type and Basic Parameters of Hay Mower JB/T 7288-1994 Pistol-type hay cutter series basic parameters GB/T 3098.2-2025 Mechanical properties of fasteners—Part 2:Nuts